Invation on turbulence and mean characteristics of canyon vortices in real urban canyons

Takeaki Katsuki, Ayumu Sato, Takenobu Michioka, Aya Hagishima

Research output: Contribution to journalArticlepeer-review

Abstract

In previous study, wind tunnel experiment for a real apartment complex was conducted to confirm the reproducibility of flow fieldwith field measurement values. In this study, a wind tunnel experiment for the same complex was conducted to comprehend the behaviors of turbulence and mean characteristics of canyon vortices within real urban canyons. Mean flow field within the each canyon was the almost same flow motion which formed large canyon vortex. It was found that within the real canyon, the helical vortex generated by the flow from the side edge and the roof of the upstream building was formed. The detailed motion of the helical vortex is influenced by the building shapes, street width and positions of surrounding buildings.

Original languageEnglish
Pages (from-to)789-795
Number of pages7
JournalJournal of Environmental Engineering (Japan)
Volume77
Issue number680
DOIs
Publication statusPublished - Oct 2012

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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